# https://src.fedoraproject.org/rpms/firefox/c/4d45de9bff7b7ef01f7d3c9e53a61adc9cf3ce9e?branch=4d45de9bff7b7ef01f7d3c9e53a61adc9cf3ce9e

diff -up firefox-102.0/xpcom/idl-parser/xpidl/xpidl.py.build-python-3.11 firefox-102.0/xpcom/idl-parser/xpidl/xpidl.py
--- firefox-102.0/xpcom/idl-parser/xpidl/xpidl.py.build-python-3.11	2022-06-23 09:10:31.000000000 +0200
+++ firefox-102.0/xpcom/idl-parser/xpidl/xpidl.py	2022-07-15 16:18:52.048351493 +0200
@@ -1572,13 +1572,13 @@ class IDLParser(object):
     t_ignore = " \t"
 
     def t_multilinecomment(self, t):
-        r"/\*(?s).*?\*/"
+        r"/\*(?s:.)*?\*/"
         t.lexer.lineno += t.value.count("\n")
         if t.value.startswith("/**"):
             self._doccomments.append(t.value)
 
     def t_singlelinecomment(self, t):
-        r"(?m)//.*?$"
+        r"(?m://.*?$)"
 
     def t_IID(self, t):
         return t
@@ -1591,7 +1591,7 @@ class IDLParser(object):
         return t
 
     def t_LCDATA(self, t):
-        r"(?s)%\{[ ]*C\+\+[ ]*\n(?P<cdata>.*?\n?)%\}[ ]*(C\+\+)?"
+        r"(?s:%\{[ ]*C\+\+[ ]*\n(?P<cdata>.*?\n?)%\}[ ]*(C\+\+)?)"
         t.type = "CDATA"
         t.value = t.lexer.lexmatch.group("cdata")
         t.lexer.lineno += t.value.count("\n")